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Re: st: Stata error message from svy command

From   William Buchanan <>
To   "" <>
Subject   Re: st: Stata error message from svy command
Date   Sun, 20 Jan 2013 18:54:31 -0800

The error message is fairly clear. The weights that you are using need to be the same for all observations within each post-strata.  If you are running into persistent issues, I would consult the dataset documentation and/or the organization that administered the survey to clarify which variables are intended for weighting and how the sample was selected.


Sent from my iPhone

On Jan 20, 2013, at 18:36, K C Wong <> wrote:

> Hi Statalisters.
> I'd like to ask what does this Stata error message, "poststratum
> weights must be constant within poststrata" mean?
> How do I go about to find out the problem and thus to solve it?
> Stata gives me this error message after I run
> svyset _n,  poststrata(poststrata) postweight(aweight)
> svy, subpop(european): logistic case  i.age_cat i.interviewmethod
> i.status i.deprivation
> Your help is greatly appreciated. Have a good week.
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